麻醉剂量调整的手术内EEGα功率,处理速度和术后妄想之间的关联:分析了三项前性研究的数据
Melody Reese1, Mary Cooter Wright2, Ken C Roberts3
1Department of Anaesthesiology, Duke University Medical Center, Durham, NC, USA; Center for the Study of Aging and Human Development, Duke University Medical Center, Durham, NC, USA; Department of Anesthesiology, Perioperative and Pain Medicine, Stanford School of Medicine, Stanford, CA, USA.
British journal of anaesthesia
|April 12, 2025
概括
根据麻醉剂量调整后,低的手术内α功率与更高的术后妄想症 (POD) 和认知功能受损的风险有关. 这一发现表明,α功率可能作为老年手术患者痴呆风险的生物标志物.
科学领域:
- 麻醉学 麻醉学
- 神经科学是一个神经科学.
- 老年医学 老年医学
背景情况:
- 以前的研究将低的手术内EEGα功率与手术前认知障碍和妄想风险联系在一起.
- 经过对麻醉剂量进行调整的手术内EEG双谱指数值显示,手术后 Delirium (POD) 的风险增加了四倍.
研究的目的:
- 量化术内麻醉剂量调整的α功率和术后妄想 (POD) 之间的关联.
- 调查调整的α功率与妄想风险因素之间的关系,包括手术前认知和阿尔茨海默病生物标志物.
主要方法:
- 分析了EEG记录,脑脊液 (CSF) 生物标志物,认知分数和82名60岁及以上的手术患者的妄想数据.
- 术内前对面脑电图α功率根据麻醉剂量进行调整,采用特定的配方.
- 研究人员检查了POD,妄风险因素,CSFAD生物标志物和手术前认知表现的相关性.
主要成果:
- 降低麻醉剂量调整的α功率与POD的几率增加相关 (OR: 1.44 [1.09, 1.89],P=0.009) 和中度至严重的妄想 (OR: 1.44 [1.04, 2.00],P=0.030).
- 在调整的α功率和CSFAD生物标志物 (pTau-181,Aβ1-42) 之间没有发现显著的关联.
- 调整的α功率与手术前的定时处理速度/执行功能 (β:0.27 [0.06,0.49],P=0.014) 相关,但与不定时的注意力/记忆无关.
结论:
- 降低的手术内麻醉剂量调整的α功率与妄想和导致妄想的认知因素有关.
- 术前处理速度和执行功能在定时任务中的受损与更低的调整alpha功率有关.
- 建议进行更大规模的研究来证实这些发现,并探索共变量调整.
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